US3884218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of inducing and maintaining various stages of sleep in the human being
Assignee: MONROE IND Inc
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Filing: 1970-09-30
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Granted: 1975-05-20
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Expires: 1990-09-30
Abstract
Abstract A method of inducing sleep in a human being wherein an audio signal is generated comprising a familiar pleasing repetitive sound modulated by an EEG sleep pattern. The volume of the audio signal is adjusted to overcome the ambient noise and a subject can select a familiar repetitive sound most pleasing to himself.
Inventors
- 👤 Robert A Monroe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:24
CPC Classifications
A; A61; A61M; A61M21/00; A61B; A61B5/00; A61B5/24; A61B5/316; A61B5/369; A61B5/372; A61M2021/0005; A61M2021/0027
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
72 words
A method of inducing sleep in a human being, comprising the steps of: a. generating an audio signal representing a familiar, repetitive, pleasing sound; b. generating a signal approximating a human EEG signal waveshape characteristic of a state of sleep; c. amplitude modulating the audio signal with the EEG signal to produce an output signal; and d. producing an audible sound signal from the output signal for listening by a human being.
Claim 2
Independent Claim
72 words
A method of inducing sleep in a human being, comprising the steps of: a. generating an audio signal representing a familiar, repetitive, pleasing sound; b. generating a signal approximating a human EEG signal waveshape characteristic of a state of sleep; c. amplitude modulating the audio signal with the EEG signal to produce an output signal; and d. producing an audible sound signal from the output signal for listening by a human being.
Claim 3
Dependent Claim
23 words
The method of claim 1 further comprising the step of setting the level of the audible sound signal above the ambient noise level.
Claim 4
Independent Claim
78 words
A method of inducing sleep comprising: a. generating an EEG sleep pattern signal; b. generating one of a plurality of signals; c. modulating the one of a plurality of signals with the EEG sleep pattern signal; d. generating an audio signal from the modulated signal; e. raising the audible level of the signal above the ambient noise level of the environment; and f. setting a timing device to automatically turn off the audio signal after a predetermined time.
Claim 5
Independent Claim
78 words
A method of inducing sleep comprising: a. generating an EEG sleep pattern signal; b. generating one of a plurality of signals; c. modulating the one of a plurality of signals with the EEG sleep pattern signal; d. generating an audio signal from the modulated signal; e. raising the audible level of the signal above the ambient noise level of the environment; and f. setting a timing device to automatically turn off the audio signal after a predetermined time.
Claim 6
Dependent Claim
22 words
The method of claim 3 wherein the plurality of signals is predetermined based upon the environment to which an individual is accustomed.
Claim 7
Dependent Claim
27 words
The method of claim 4 wherein the EEG sleep pattern signals are predetermined signals whicH have the same waveshape as the EEG patterns generated by sleeping individuals.
Claim 8
Dependent Claim
34 words
The method of claim 3 wherein the step of selecting one of the plurality of audio signals comprises an individual listening to seven signals and deciding which signal is the most pleasing to him.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-19 | 1978-11-18 | 1979-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-19 | 1982-11-18 | 1983-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-19 | 1986-11-18 | 1987-05-20 | $7700.00 | Window Closed / Lapsed |